Real Dictionary

curling in American English
a game played on ice by two teams of four players each, in which a heavy, thick disk of stone or iron (curling stone) is slid toward a target circle at the other end of the rink: players may sweep the ice before the moving disk to remove ice particles and
noun: a game played on ice in which two teams of four players each compete in sliding large stones toward a mark in the center of a circle

curling in British English
noun: a game played on ice, esp in Scotland and Canada, in which heavy stones with handles ( curling stones) are slid towards a target (tee)